Module: kamailio Branch: master Commit: 4991821daf9053cdd68957b18bfa23b8e906a00e URL: https://github.com/kamailio/kamailio/commit/4991821daf9053cdd68957b18bfa23b… Author: Daniel-Constantin Mierla <miconda(a)gmail.com> Committer: Daniel-Constantin Mierla <miconda(a)gmail.com> Date: 2016-12-01T12:37:06+01:00 ss7ops: safety check before freeing allocated isup json buffer --- Modified: modules/ss7ops/ss7ops_mod.c --- Diff: https://github.com/kamailio/kamailio/commit/4991821daf9053cdd68957b18bfa23b… Patch: https://github.com/kamailio/kamailio/commit/4991821daf9053cdd68957b18bfa23b… --- diff --git a/modules/ss7ops/ss7ops_mod.c b/modules/ss7ops/ss7ops_mod.c index 26aaeb6..efeb816 100644 --- a/modules/ss7ops/ss7ops_mod.c +++ b/modules/ss7ops/ss7ops_mod.c @@ -61,7 +61,7 @@ struct mtp_level_3_hdr { * ss7 module - helper module to convert M2UA/ISUP to JSON * */ -static const char *isup_last; +static const char *isup_last = NULL; static int w_isup_to_json(struct sip_msg* _m, char* param1, char* param2); static int pv_get_isup(struct sip_msg *msg, pv_param_t *param, pv_value_t *res); @@ -259,7 +259,7 @@ static int w_isup_to_json(struct sip_msg *_m, char *param1, char *param2) int opc, dpc, mtp_type, int_len, rc; size_t len; - free((char *) isup_last); + if(isup_last) free((char *) isup_last); isup_last = NULL; data = fetch_payload(_m, "$var(payload)", &int_len);